Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.

The direction in which the Earth and the other solid planets–Mercury, Venus, and Mars–spins were determined from collisions with giant celestial bodies in the early history of the Solar System.

Scientists believe that unlike the males of most species of moth, the male whistling moths of Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.

The new image of Stone Age people as systematic hunters of large animals, rather than merely scavenging for meat, have emerged from the examination of tools found in Germany, including three wooden spears that archaeologists believe to be about 400,000 years old.

There is a widespread belief in the United States and Western Europe that young people have a smaller commitment to work and a career than their parents and grandparents and that the source of the change lies in the collapse of the “work ethic.”

A team of scientists has recently provided evidence of Earth being bombarded daily with as many as 40,000 small comets, vaporizing in the upper atmosphere to fall to Earth as rain.

In an effort to increase profits, the company moved itself from emphasizing its chemicals business to expand into high-growth pharmaceuticals and futuristic biotechnologies.

In 1997, despite an economy that marked its sixth full year of uninterrupted expansion with the lowest jobless rate in a quarter century, the number of United States citizens declaring themselves bankrupt has jumped by almost 20 percent, at 1.34 million.

Unlike many United States cities, where a river is no longer the focal point of urban life, the river in San Antonio winds through the middle of the business district, and the River Walk, or Paseo del Rio, is the city’s most popular attraction.

Most of the purported health benefits of tea comes from antioxidants–compounds also found in beta carotene, vitamin E, and vitamin C that inhibit the formation of plaque along the body’s blood vessels.